diff options
Diffstat (limited to 'toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106860.patch')
| -rw-r--r-- | toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106860.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106860.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106860.patch new file mode 100644 index 0000000000..895d6a6cff --- /dev/null +++ b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106860.patch @@ -0,0 +1,104 @@ +2012-01-12 Ulrich Weigand <ulrich.weigand@linaro.org> + + LP 879725 + Backport from mainline: + + 2012-01-02 Revital Eres <revital.eres@linaro.org> + + gcc/ + * ddg.c (def_has_ccmode_p): New function. + (add_cross_iteration_register_deps, + create_ddg_dep_from_intra_loop_link): Call it. + + gcc/testsuite/ + * gcc.dg/sms-11.c: New file. + +=== modified file 'gcc/ddg.c' +--- old/gcc/ddg.c 2011-10-02 06:56:53 +0000 ++++ new/gcc/ddg.c 2012-01-10 16:05:14 +0000 +@@ -166,6 +166,24 @@ + return false; + } + ++/* Return true if one of the definitions in INSN has MODE_CC. Otherwise ++ return false. */ ++static bool ++def_has_ccmode_p (rtx insn) ++{ ++ df_ref *def; ++ ++ for (def = DF_INSN_DEFS (insn); *def; def++) ++ { ++ enum machine_mode mode = GET_MODE (DF_REF_REG (*def)); ++ ++ if (GET_MODE_CLASS (mode) == MODE_CC) ++ return true; ++ } ++ ++ return false; ++} ++ + /* Computes the dependence parameters (latency, distance etc.), creates + a ddg_edge and adds it to the given DDG. */ + static void +@@ -202,6 +220,7 @@ + whose register has multiple defs in the loop. */ + if (flag_modulo_sched_allow_regmoves + && (t == ANTI_DEP && dt == REG_DEP) ++ && !def_has_ccmode_p (dest_node->insn) + && !autoinc_var_is_used_p (dest_node->insn, src_node->insn)) + { + rtx set; +@@ -335,7 +354,8 @@ + if (DF_REF_ID (last_def) != DF_REF_ID (first_def) + || !flag_modulo_sched_allow_regmoves + || JUMP_P (use_node->insn) +- || autoinc_var_is_used_p (DF_REF_INSN (last_def), use_insn)) ++ || autoinc_var_is_used_p (DF_REF_INSN (last_def), use_insn) ++ || def_has_ccmode_p (DF_REF_INSN (last_def))) + create_ddg_dep_no_link (g, use_node, first_def_node, ANTI_DEP, + REG_DEP, 1); + + +=== added file 'gcc/testsuite/gcc.dg/sms-11.c' +--- old/gcc/testsuite/gcc.dg/sms-11.c 1970-01-01 00:00:00 +0000 ++++ new/gcc/testsuite/gcc.dg/sms-11.c 2012-01-10 16:05:14 +0000 +@@ -0,0 +1,37 @@ ++/* { dg-do run } */ ++/* { dg-options "-O2 -fmodulo-sched -fmodulo-sched-allow-regmoves -fdump-rtl-sms" } */ ++ ++extern void abort (void); ++ ++float out[4][4] = { 6, 6, 7, 5, 6, 7, 5, 5, 6, 4, 4, 4, 6, 2, 3, 4 }; ++ ++void ++invert (void) ++{ ++ int i, j, k = 0, swap; ++ float tmp[4][4] = { 5, 6, 7, 5, 6, 7, 5, 5, 4, 4, 4, 4, 3, 2, 3, 4 }; ++ ++ for (i = 0; i < 4; i++) ++ { ++ for (j = i + 1; j < 4; j++) ++ if (tmp[j][i] > tmp[i][i]) ++ swap = j; ++ ++ if (swap != i) ++ tmp[i][k] = tmp[swap][k]; ++ } ++ ++ for (i = 0; i < 4; i++) ++ for (j = 0; j < 4; j++) ++ if (tmp[i][j] != out[i][j]) ++ abort (); ++} ++ ++int ++main () ++{ ++ invert (); ++ return 0; ++} ++ ++/* { dg-final { cleanup-rtl-dump "sms" } } */ + |